Extensions & additions
Single- or two-storey extensions, side or rear additions, porches and other projects involving structural work and coordination with other trades.
Builder Croydon
Find a builder in Croydon
Planning an extension, renovation, structural alteration, conversion or substantial repair? Post the project once and suitable builders covering your Croydon postcode can get in touch. Compare relevant experience, scope, programme and price before deciding who feels right for the work.
- Post your building project once
- Compare up to 3 quotes
- No obligation to hire
Identity-verified partner profiles
Compare up to 3 local quotes
You choose who to hire
Looking for a builder near you in Croydon?
Use the project postcode and describe the property, proposed work and stage you are at. A tight-access terrace or conversion near central Croydon can present very different delivery, skip and neighbour constraints from a larger plot in Purley, Coulsdon or Sanderstead, so access, storage, existing structure and approvals should be clear before builders price the job.
Building projects large and small
What can a Croydon builder help with?
A general builder may take on anything from masonry repairs to a multi-trade renovation. Larger projects are easier to compare when every builder receives the same drawings, specification, structural information and statement of who is responsible for approvals.
Renovations & refurbishments
Whole-room or whole-house improvement projects involving strip-out, repair, reconfiguration, making good and coordination between several trades.
Structural alterations
New openings, wall alterations and structural supports where the work follows appropriate design, calculations and the required approval route.
Brickwork & masonry
New walls, repairs, repointing, steps, blockwork and other masonry where a general builder or brickwork specialist is appropriate.
Conversions & reconfiguration
Garage, loft-adjacent or internal reconfiguration projects that change how existing space is used, subject to design and permissions.
General building repairs
Local masonry, structural and fabric repairs, making good after other trades and building work that goes beyond a typical handyman visit.
How much does a builder cost in Croydon?
Building projects vary too much for one number to describe every job, but current Croydon data gives useful local benchmarks for general building work:
~£9,949/jobaverage Croydon general-building job
£5,168–£16,998typical Croydon general-building range
Indicative guidance checked August 2026. Checkatrade currently shows general building services in Croydon at about £9,949 on average, with a typical range around £5,168–£16,998. Its Croydon extension data averages about £38,253, which shows why larger projects should be compared from drawings, scope, materials, access, waste, specialist trades and programme rather than a single average.
Comparable quotes start with a comparable brief
Give every builder the same project information
A low headline figure is difficult to judge if one builder has included scaffolding, waste, structural steel, specialist trades and making good while another has not. Standardise the information before comparing totals.
- Share drawings, dimensions, structural information and specifications you already have.
- State which permissions or approvals have been obtained and who is expected to manage inspections or paperwork.
- Explain access for deliveries, skips, scaffolding and materials, including controlled parking, shared access or narrow side routes.
- Ask each builder to state exclusions, VAT where applicable, payment stages, programme and how variations will be agreed.
Across Croydon
Search for builders by Croydon postcode
The postcode helps builders understand both travel and the practical context of the project, whether the property is in Central Croydon, South Croydon, Purley, Addiscombe, Thornton Heath, Norbury, Coulsdon or Sanderstead.
Central CroydonSouth CroydonPurleyAddiscombeThornton HeathNorburyCoulsdonSanderstead
Planning controls vary across the borough
Croydon Council says not all development needs planning permission, but local planning policy, heritage designations and Building Regulations are separate considerations. Check the property and proposal before assuming permitted development applies.
Conservation areas and Article 4 directions need extra care. Croydon currently has 21 conservation areas. Article 4 directions remove some permitted development rights in areas including Chatsworth Road, The Waldrons and Kenley Aerodrome, so some normally minor work may require planning permission.
How it works
Post the Croydon building project once. Then compare suitable builders.
Describe the project once, share the information you already have and let builders who cover the postcode decide whether the scope fits their team and programme.
Post the building project
Enter the Croydon postcode, describe the work, project stage, drawings or approvals you have and your preferred timing.
Hear from suitable local builders
Your requirements can be matched through our partner network, and up to 3 local tradespeople can contact you about the project.
Compare and choose
Compare relevant project experience, scope, exclusions, programme, communication and price before deciding who to hire.
Choose with confidence
What should you check before hiring a builder?
For substantial work, compare more than the total price. Look at relevant experience, the clarity of the written scope, how the project will be managed and what happens when design or site conditions change.
Comparable project experience
Ask for recent examples and references from work similar in scale and complexity. Extensions, structural alterations and full renovations demand different planning from small repairs.
Contract, insurance & payment stages
For larger work, agree the scope, insurance, programme, variation process and staged payments in writing. Avoid vague arrangements that make inclusions hard to judge.
Approvals and responsibilities
Clarify who is responsible for drawings, structural design, planning matters, Building Regulations, inspections and completion paperwork before work begins.
Builder plus specialist trades
Make sure the right Croydon specialists are included
A builder may coordinate a renovation or extension, but electrical, plumbing, roofing and finishing work still needs the right trade and, where relevant, the right qualifications. Ask who will carry out each part and who remains responsible for coordination.
Useful answers
Builder Croydon FAQs
Quick answers before posting a building project in Croydon.
How do I find a builder near me in Croydon?
Enter the project postcode and describe the work, scale and current stage clearly. Your request can then be matched with suitable builders who cover that part of Croydon, allowing you to compare up to 3 responses.
How much does a builder cost in Croydon?
Current Checkatrade Croydon guidance shows general building services at about £9,949 on average, with a broad range around £5,168–£16,998. Larger extensions and conversions can be much more, so compare complete project scopes.
Do I need planning permission for an extension in Croydon?
Not every extension needs a full planning application because some work can fall within permitted development rights, but the answer depends on the property and proposal. Check Croydon Council and Planning Portal guidance before work starts.
Is Building Regulations approval the same as planning permission?
No. Planning and Building Regulations are separate systems. A project may need one, both or neither depending on the work, so check the relevant approval routes before construction.
Do conservation areas affect building work in Croydon?
They can. Croydon has 21 conservation areas, and Article 4 directions in some locations remove certain permitted development rights. Heritage status should be checked before finalising external alterations.
Are the builders verified?
Tradespeople using our partner service are verified with official identification, email and phone details. Public liability insurance and qualifications are checked where provided. You should still review profiles, comparable project experience, insurance and the full quote.
Do I have to accept a builder quote?
No. Posting the project does not oblige you to hire anyone. Compare the scope, experience, programme, contract terms and price and choose only if you are comfortable with the builder and proposed approach.
Need a builder in Croydon?
Post the building project once, let suitable local builders come to you and compare your options before deciding who to hire.